Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): D.P. Gwaze; F.E. Bridgwater; C.G. Williams
    Date: 2002
    Source: Theor Appl Genet (2002) 105:526-531
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (179 KB)


    Inheritance of growth curves is critical for understanding evolutionary change and formulating efficient breeding plans, yet has received limited attention. Growth curves, like other characters that change in concert with development, often have higher heritability than age-specific traits. This study compared genetic parameters of height-growth curves with those of age-specific heights for a conifer, Pinus taeda L. Growth curves were fitted with: (1) a linear regression model, and (2) a non-linear model based on Richards' function using two sources of height data: two six-parent diallel tests assessed at age 2 to 10 years and two tests from a nestedmating design with 222 parents assessed at 1 to 25 years. Additive genetic control of growth-curve parameters was moderate (h² = 0.06 to 0.26) and slightly lower than that for age-specific heights. Additive variance exceeded dominance variance for rate and shape parameters, but not for the asymptote. Genetic correlations among growth-curve parameters were high. Early selection on height was as efficient as selection on growth-curve parameters.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Gwaze, D.P.; Bridgwater, F.E.; Williams, C.G. 2002. Genetic analysis of growth curves for a woody perennial species, Pinus taeda L. Theor Appl Genet (2002) 105:526-531

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page